Invention Grant
- Patent Title: Sensor chip, electronic equipment, and apparatus
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Application No.: US16478906Application Date: 2018-09-12
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Publication No.: US11543497B2Publication Date: 2023-01-03
- Inventor: Yasuhiro Shinozuka
- Applicant: Sony Semiconductor Solutions Corporation
- Applicant Address: JP Kanagawa
- Assignee: Sony Semiconductor Solutions Corporation
- Current Assignee: Sony Semiconductor Solutions Corporation
- Current Assignee Address: JP Kanagawa
- Agency: Wolf, Greenfield & Sacks, P.C.
- Priority: JPJP2017-245944 20171222
- International Application: PCT/JP2018/033860 WO 20180912
- International Announcement: WO2019/123738 WO 20190627
- Main IPC: G01S7/4865
- IPC: G01S7/4865 ; G01S7/08 ; G01S17/08 ; G01S17/894 ; H01L27/146

Abstract:
[Problem]
The present disclosure proposes a technology that makes it possible to further reduce the influence of an error arising from a resolution of processing relating to measurement of the distance.
[Solving Means]
A sensor chip is provided which includes a light reception section configured to receive light projected from a light source and reflected by an imaging target to detect, for each given detection period, a reception light amount of the reflected light within the given period, a measurement section configured to measure a distance to the imaging object based on the reception light amount, and a control section configured to apply at least one of a first delay amount or a second delay amount, whose resolutions relating to control are different from each other, to control of a first timing at which the light reception section is to detect the reception light amount thereby to control a relative time difference between the first timing and a second timing at which the light source is to project light with a resolution finer than the resolutions of the first delay amount and the second delay amount in response to the first delay amount and the second delay amount.
The present disclosure proposes a technology that makes it possible to further reduce the influence of an error arising from a resolution of processing relating to measurement of the distance.
[Solving Means]
A sensor chip is provided which includes a light reception section configured to receive light projected from a light source and reflected by an imaging target to detect, for each given detection period, a reception light amount of the reflected light within the given period, a measurement section configured to measure a distance to the imaging object based on the reception light amount, and a control section configured to apply at least one of a first delay amount or a second delay amount, whose resolutions relating to control are different from each other, to control of a first timing at which the light reception section is to detect the reception light amount thereby to control a relative time difference between the first timing and a second timing at which the light source is to project light with a resolution finer than the resolutions of the first delay amount and the second delay amount in response to the first delay amount and the second delay amount.
Public/Granted literature
- US20190383917A1 SENSOR CHIP, ELECTRONIC EQUIPMENT, AND APPARATUS Public/Granted day:2019-12-19
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